Draft gear



Patented May FFCE HERMAN C. PRIEBE, GF BLUE SLAND, ILLINOIS.

DRAFT GEAR.

Application filed July 28, 1924:. i Serial No. 728,362.

My invention relates to railroad car draft gears and particularly tostop lugs employed in conjunction therewith, the invention residing inemploying` these lugs as a means for assembling the car body and truckbolsters, or more specifically, the center or draft sills and truckbolsters.

An object of my invention, on the one hand, is to form the lugs separatefrom one another as proposed in my prior Patent 1,525,885 so that eachlug may be riveted to its related sill by power machinery before thelugs are secured together, thereby to assure a most effective, strongand durable union between the lugs and the sills,iand to eliminateweaknesses such as invariably occur as a result of manually riveting thelugs to the sills as is necessary by present known methods and means.when the lugs are formed integral with one another, and, on the otherhand, to provide formations in or on the lugs cooperating with oneanother when the lugs are assembled together to provide sleeve for thereception of a king pin such as is usually employed in draft gears ofthis type for assembling the gear proper with a truck.

In carrying out my invention, the opposite stop lugs of a set upon thecenter or draft sills of a car are merged or assembled into a unitarystructure whereby eac-h stop lug of such a structure supplements andstrengthens the other and cooperates therewith in receiving strains andtransmitting the same to the draft sills. such a unitary structure beingalso shaped to constitute a sleeve or socket for the bolster assemblingking pin.

In the preferred embodiment of the invention each of a pair of oppositestop lugs has an upright transverse wing overlapping` the uprighttransverse wing of the other, each overlapping part of the wing beingformed with an upright semicylindrical recess matching the recess in theother to form a cylindrical sleeve to receive a king pin.

The invention will be more fully explained by reference to theaccompanying drawing in which Fig. 1 is a sectional plan view of astructure made in accordance with the preferred embodiment of theinvention; Fi 2 is a sectional view on line 2 2 of Fig. 1; and Fig. 3 isa sectional view on line 3 3 of Fig.

The center or draft sills 1 and 2 are asthe car. The draft gear that isinterposed between these sills at each end of a car includes an innerfollower 3 and a yoke 4:.

Elongated motion limiting lugs or cheek plates 5, 6 are riveted to theinner upright sides of the center sills at each end of the car and areengaged by the inner end of said follower 3 to limit the inward motionof the followers. The lug 5 has an inwardly projecting upright wing 7and the lug 6 has an inwardly projecting uprightwing 8, these wingsoverlapping each other. rlhe overlapping ends of the wings are securedtogether by rivets or bolts 9 which unite the wings into a unitarystructure with the lugs, the lugs and their united wings spanning thespace between the draft sills. The wings are formed with symmetricallyrelated matched semicylindrical recesses 10, 11 forming a sleeve orsocket to receive a king pin 12 that serves to pivotally connect thecenter sills and body bolster structure with the underlying truckbolster.

As illustrated, the center sill structure and the lugs uniting thecenter sills are also parts of the body bolster which is completed bythe addition of wings 13 secured to and projectine; laterally andoutwardly from the center sills. rlhe truck bolster 14E underlies thebody bolster, these two holsters being respectively provided with thecomplemental members 15, 16 of a center bearing. The king pin 12 passesthrough the socket 10, 11 afforded by the united stop lugs and alsothrough upright cylindrical or circular holes in the center bearingmembers and the truck bolster. rlhe resulting structure is compact andof great strength with a minimum of parts.

Changes may be made without departing from my invention.

Having thus described my invention, I claim 1. IThe combination with thedraft sills of a car; of a truck bolster beneath said sills; a centerbearing interposed between the sills and truck bolster; a draft gearassembled with the draft sills; oppositely arranged stop lugs secured tothe sills for limiting movement of the draft gear, each lug having awing projecting toward the other, these wings being bolted or rivetedtogether and shaped to furnish an u pright sleeve aligned with thecenter bearing; and a king pin passing through said sleeve andassembling the same and said sills with the center bearing and truckbolster.

2. The combination with the draft sills of a car; of a truck bolsterbeneath said sills; a center bearing interposed between the sills andtruck bolster; a draft gear assembled with the center sills; oppositelyarranged stop lugs secured to the sills for limiting movement of thedraft gear each having a wing projecting toward the other, these wingsbeing bolted or riveted together to form a unitary structure, thisstructure being shaped to furnish an upright sleeve aligned with thecenter bearings; and a king pin passing through said sleeve andassembling the same and said sills with the center bearing and truckbolster.

3. The combination with the draft sills of a car; of a truck bolsterbeneath said sills; a center bearing interposed between the sills andtruck bolster; a draft gear assembled with the draft sills; oppositely7arranged stop lugs secured to the sills for limiting movement of thedraft gear; each lug having a wing projecting toward the other, thesewings being bolted or riveted together, each wing being formed with anupright semicylindrical recess symmetrical to and matching thesemicylindrical recess of the other to furnish an upright sleeve alignedwith the center bearing; and a king pin passing through said sleeve andassembling the same and said sills with the center bearing and truckbolster.

4, The combination with the draft sills of a car; of stop lugs carriedby said sills, respectively, said lugs being formed separate from oneanother whereby they may effectively be secured individually to saidsills and thereafter secured together to provide a unitary structure,and cooperating formations on said lugs for the reception of a kino'pin.

5. rlhe combination with the draft sills of a car, of stop lugs carriedby said sills, respectively, said lugs being formed separate from oneanother whereby they may effectively be secured individually to saidsills and thereafter secured together to provide a unitary structure,portions of said lugs overlapping one another, and a king pin engageablewith companion formations provided in said overlapping portions toreceive it.

6. The combination with the draft sills of a car; of a stop lug securedto each sill; each lug having a portion thereof overlapping a portion ofthe other lug, said overlapping portions being rigidly secured t0-gether to provide a unitary structure and having cooperating formations,respectively7 providing a. sleeve for the reception of a king pin.

7. As an article of manufacture, a stop lug for use in car draft gears,comprising a member of less width than the distance between a pair ofdraft sills to one of which it is adapted to be secured and having avertically disposed king pin receiving formation adapted to mate with asimilar king pin receiving formation in a companion lug,

8. As an article of manufacture, a stop lug for use in car draft gears,comprising a member of less width than the distance between a pair ofdraft sills and being adapted to be secured lengthwise to one of thelatter, and having a king pin receiving formation extending at rightangles to the lengthwise direction of the lug.

In witness whereof, I hereunto subscribe my name.

HERMAN C. PRIEBE.

